The FPS and the Prelude are the best for gaming!
Out of the two, the Fatal1ty is better for gaming - it's faster than the Prelude, but at the cost of slightly lower audio quality.though, for the vast majority of users, that difference isn't noticeable.

The reason it's faster - it boils down to the PCB architecture, and the other onboard components. The Prelude, the Fatal1ty and the Elite Pro all share 64MB of Hynix DRAM, but the PCB architecture of the fatality is to the point - tha DAC is rather small, and performs quickly, as well as the OPAMPs - plus, the choice of capacitors doesn't impede channel flow too much either.

But, this all comes at a cost of audio quality - out of the 3 I mentioned above, the Fatal1ty can't compare to the audio quality of the Prelude or the Elite Pro. Which is why you'll find threads throughout the internet of people who've swapped out the capacitors and OPAMPs on the Fatal1ty . . . which is fine, it really does make a notable improvement to the cards audio quality, but also slows down the whole audio playback process a bit as well. Double edged sword . . .

But, still, even after the PCB mods, the card is still one of the fastest on the market, but only slightly faster than the Elite Pro . . . at this point, the Razer Barracuda tops out as fastest card, but wouldn't be able to touch the audio quality of a modded Fatal1ty.